Make use oh hashcat --username

[stub1t]

Maybe this part can be simplified by using hashcat with --username

https://github.com/mantvydasb/RedTeaming-Tactics-and-Techniques/blob/b2d19a627c1a6923ec2d46981345325f062187da/offensive-security/credential-access-and-credential-dumping/dumping-and-cracking-mscash-cached-domain-credentials.md?plain=1#L79